Some items are specific to a certain region, while others can be found in both Kanto and Hoenn. Through hacking, Hoenn-exclusive key items can be obtained (though they will have no use) in the Kanto-based games, while Kanto-exclusive key items can be obtained in Emerald (likewise to no use). The Mach Bike and Acro Bike, though they can be used as the normal Bicycle in FireRed and LeafGreen, will not be recognized by the game as the Bicycle, and so will not allow the player to enter Cycling Road normally. The normal Bicycle, however, cannot be used in Emerald at all. All items, regardless of being legitimately obtainable or not, will have an item description and, from FireRed and LeafGreen onward, a sprite.